Why are you modifying the tree? That sounds rather suspect to me. Plus, I'll bet that if you benchmark it, the cost of cloning is going to be about 80-90% of the cost of parsing. Try it out. If that's all it is, then I'd suggest not worrying about it.
My criteria for good software:
  1. Does it work?
  2. Can someone else come in, make a change, and be reasonably certain no bugs were introduced?

In reply to Re: fast return of HTML::Tree object clones (via threads/forks)? by dragonchild
in thread fast return of HTML::Tree object clones (via threads/forks)? by metaperl

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